question_answer1) A digital computer can memorize indefinitely
A) only numerical data done clear
B) only non-numerical data done clear
C) both numerical and non-numerical data done clear
D) neither numerical nor non-numerical data done clear
View Solution play_arrowquestion_answer2) Which of the following circuit converts a JK flip-flop to T flip-flop?
A) done clear
B) done clear
C) done clear
D) done clear
View Solution play_arrowquestion_answer3) Correction in decimal adder is required because
A) sums are represented wrongly in binary code done clear
B) sums are represented wrongly in BCD code done clear
C) the numbers to be added are not represented in BCD code done clear
D) none of these done clear
View Solution play_arrowquestion_answer4) The function of strobe pulse in digital system is
A) to reset memory registers done clear
B) to check the functioning of a logic gate done clear
C) to avoid race problem done clear
D) to shift data in registers done clear
View Solution play_arrowquestion_answer5) Which of the following is not a magnetic memory?
A) Flip-flop done clear
B) Tape done clear
C) Drum done clear
D) Disk done clear
View Solution play_arrowquestion_answer6) Registers and counters are similar in the sense that they both
A) are made from an array of flip-flops and gates integrated on a single chip done clear
B) store binary information done clear
C) count pulses done clear
D) are, in fact, shift registers done clear
View Solution play_arrowA) 7 done clear
B) 8 done clear
C) 15 done clear
D) 16 done clear
View Solution play_arrowquestion_answer8) What is the function of control unit in the CPU?
A) Decoding of program instructions. done clear
B) Transfer of data to primary storage. done clear
C) Performing logical operations. done clear
D) Storage of program instructions. done clear
View Solution play_arrowquestion_answer9) Which of the following logics has excellent noise margin?
A) TTL done clear
B) ECL done clear
C) CMOS done clear
D) All of these done clear
View Solution play_arrowquestion_answer10) Programmable Logic Array (PLA) uses
A) ROM matrices done clear
B) FROM matrices done clear
C) RAM matrices done clear
D) Silo memory done clear
View Solution play_arrowquestion_answer11) The output Y of the logic circuit given below is
A) 1 done clear
B) 0 done clear
C) X done clear
D) x done clear
View Solution play_arrowA) XY, XY done clear
B) XY, XYZ, XYZ done clear
C) XYZ, XYZ, XY done clear
D) XYZ, XYZ, XYZ, XYZ done clear
View Solution play_arrowquestion_answer13) A latch is _____ sensitive
A) both level and edge done clear
B) edge done clear
C) level done clear
D) None done clear
View Solution play_arrowquestion_answer14) How many bits are required to store one BCD digit?
A) 1 done clear
B) 2 done clear
C) 3 done clear
D) 4 done clear
View Solution play_arrowquestion_answer15) m binary number system the first digit (bit) from right to left is called as
A) LSB, Least Significant Bit done clear
B) MSB, Most Significant Bit done clear
C) First Bit done clear
D) Last Bit done clear
View Solution play_arrowquestion_answer16) A D-flip-flop is said to be transparent when
A) The output is LOW done clear
B) The output is HIGH done clear
C) The output follows clock done clear
D) The output follows input done clear
View Solution play_arrowquestion_answer17) Which of these sets of logic gates are designated as universal gates?
A) NOR, NAND. done clear
B) XOR, NOR, NAND. done clear
C) OR, NOT, AND. done clear
D) NOR, NAND, XNOR. done clear
View Solution play_arrowquestion_answer18) In the toggle mode a JK- flip-flop has
A) J=0, K=0. done clear
B) J=1, K=1. done clear
C) J=0, K=1. done clear
D) J=1, K=0. done clear
View Solution play_arrowquestion_answer19) Which of the following is a digital device?
A) Regulator of a fan done clear
B) Microphone done clear
C) Resistance of a material done clear
D) Light switch done clear
View Solution play_arrowA) 1 done clear
B) 2 done clear
C) 4 done clear
D) 8 done clear
View Solution play_arrowquestion_answer21) A three-state buffer has the following output states
A) 1, 0, float done clear
B) High, Low, Float done clear
C) Both A and B done clear
D) Set, Reset, Halt done clear
View Solution play_arrowquestion_answer22) Temperature variation is a/an
A) Digital quantity done clear
B) Analog quantity done clear
C) Either Digital or Analog quantity done clear
D) None done clear
View Solution play_arrowquestion_answer23) In Digital Logic Designs, GAL is abbreviated as
A) General Advance Logic done clear
B) General Array Logic done clear
C) Generic Advance Logic done clear
D) Generic Array Logic done clear
View Solution play_arrowquestion_answer24) A digital circuit that can store on bit is a
A) XOR gate done clear
B) flip-flop done clear
C) gate done clear
D) register done clear
View Solution play_arrowquestion_answer25) If J=K(J and K are shorted) in a JK flip-flop, what circuit is made
A) SR flip-flop done clear
B) Shorted JK flip-flop done clear
C) T flip-flop done clear
D) K flip-flop done clear
View Solution play_arrowquestion_answer26) Which logic family provides minimum power dissipation
A) TTL done clear
B) CMOS done clear
C) BCL done clear
D) JFET done clear
View Solution play_arrowquestion_answer27) In a T flip-flop no of input circuit is
A) 1 done clear
B) 2 done clear
C) 3 done clear
D) 4 done clear
View Solution play_arrowquestion_answer28) A boolean function can be transformed into logical
A) Graph done clear
B) Map done clear
C) Diagram done clear
D) Matrix done clear
View Solution play_arrowquestion_answer29) In Boolean algebra A.A is equal to
A) A done clear
B) A2 done clear
C) 2A done clear
D) 1 done clear
View Solution play_arrowquestion_answer30) In Boolean algebra AND is represented by
A) + done clear
B) \[-\] done clear
C) / done clear
D) \[\times \] done clear
View Solution play_arrowquestion_answer31) Truth table is used to express
A) Boolean expression done clear
B) Boolean map done clear
C) Boolean matrix done clear
D) Boolean addition done clear
View Solution play_arrowquestion_answer32) The boolean algebra is mostly based on
A) Boolean theorem done clear
B) De Morgans theorem done clear
C) D Morpans theorem done clear
D) Standard theorem done clear
View Solution play_arrowquestion_answer33) A+\[\overline{A}\] is equal to
A) A done clear
B) A done clear
C) 0 done clear
D) 1 done clear
View Solution play_arrowquestion_answer34) Complement of XNOR and NOR is ___ and ____ respectively.
A) NOR, XNOR done clear
B) OR, NOR done clear
C) XOR, NOR done clear
D) XOR, OR done clear
View Solution play_arrowquestion_answer35) Convert the binary number (1111000011110000) to hexadecimal number
A) 1010 done clear
B) FOFO done clear
C) 7070 done clear
D) 5050 done clear
View Solution play_arrowquestion_answer36) Positive integers must be represented by
A) Signed numbers done clear
B) Unsigned number done clear
C) Both A and B done clear
D) None of these. done clear
View Solution play_arrowquestion_answer37) EBCDIC is abbreviated as
A) Extended Bit Coded Decimal Interchange Code done clear
B) Extended Binary Coded Dictation Interchange Code done clear
C) Extended Binary Color Decimal Interchange Code done clear
D) Extended Binary Coded Decimal Interchange Code done clear
View Solution play_arrowquestion_answer38) A sequence of binary digits is known as
A) Bit string done clear
B) Byte string done clear
C) Input string done clear
D) Word string done clear
View Solution play_arrowquestion_answer39) Why decoder is used in the digital electronics?
A) To convert coded information into non coded form done clear
B) To convert non coded information into coded form done clear
C) It is used to separate address bus and data bus done clear
D) None of the above done clear
View Solution play_arrowquestion_answer40) How the digital signals is transmitted through a single conductor?
A) Parallel done clear
B) Analog done clear
C) Serial done clear
D) None of the above done clear
View Solution play_arrowquestion_answer41) How many input and output required for multiplexer?
A) Many input and one output done clear
B) One input and many output done clear
C) One input and one output done clear
D) None of the above done clear
View Solution play_arrowA) A=0, B=0, C=0 done clear
B) A=1, B=1, C=0 done clear
C) A=1, B=O, C=1 done clear
D) A=1, B=1, C=1 done clear
View Solution play_arrowquestion_answer43) Why small bubble is given on the output of the NAND gate symbol?
A) Tristate done clear
B) Output is inverted done clear
C) Open collector output done clear
D) None of the above done clear
View Solution play_arrowquestion_answer44) A quartz crystal oscillator consists of
A) Only series resonant frequency. done clear
B) Only parallel resonant frequency. done clear
C) Both series and parallel frequencies. done clear
D) Neither series nor parallel frequency. done clear
View Solution play_arrowquestion_answer45) Quantities whose values very with time are
A) digital done clear
B) scalar done clear
C) analogue done clear
D) vetor done clear
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